Sony's next handheld could be the only portable device with a semi-custom chip based on AMD's RDNA 5. That is the claim of Richard Leadbetter of Digital Foundry, who in the latest Patreon-exclusive Digital Foundry Direct podcast said there have been behind-the-scenes discussions suggesting Sony has an "exclusive of sorts" on RDNA 5 for its upcoming portable device.
The key factor, according to the sources, is scale. AMD is reportedly becoming more selective about allocating engineering resources to semi-custom processors for niche products. The leaker Kepler_L2 had already claimed that Microsoft would need to commit to at least 10 million chips for AMD to develop a dedicated processor for its proposed Xbox handheld, a figure that seems unlikely. Sony's expected production volumes would instead make its device more attractive to AMD.
If the account is accurate, Sony would be the only one with a purpose-built RDNA 5 handheld chip, while competitors would remain on the earlier RDNA 4 architecture. It would not be a signed exclusivity deal, but a consequence of AMD's manufacturing policy, which, as several sources note, favors projects with guaranteed volumes, since TSMC wafers are expensive.
What RDNA 5 could bring
The technologies associated with RDNA 5 and the Project Amethyst work are three: Neural Arrays, which let groups of compute units work as one larger AI engine, useful for more sophisticated reconstruction and upscaling; Radiance Cores, dedicated hardware to accelerate ray tracing and path tracing; and Universal Compression, which reduces memory traffic and improves effective bandwidth, with benefits for power consumption as well as performance. Their presence in Sony's device is not confirmed.
Kepler_L2 also suggested AMD could add hardware to reorder shader work to reduce divergence, though that interpretation remains unverified. For a battery-powered device, more efficient use of compute resources could matter more than chasing desktop-level clock speeds.
Still, a modern architecture guarantees nothing. The PlayStation Vita, Sony's last portable, sold an estimated 15-16 million units, against about 76 million for the Nintendo 3DS. Game lineup and pricing, still unknown, will weigh far more than the technology alone.
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